National Geographic News’s most popular coverage of 2009 scientific finds is swarming with megamouth sharks, giant snakes, a transparent-headed fish, and rare species rescued from obscurity—then eaten.

10. Ultra-Rare Megamouth Shark Found, Eaten

In March, the 41st megamouth shark ever found went from swimming in Philippine waters to simmering in coconut milk.

9. Ancient Gem-Studded Teeth Show Skill of
Early Dentists

The glittering “grills” of some hip-hop stars aren’t exactly unprecedented. Sophisticated dentistry allowed Native Americans to add bling to their teeth as far back as 2,500 years ago, a May study said.

8. Alien Giant Snakes Threaten to Invade Up to
1/3 of U.S.

Nine giant snakes could be on the verge of causing ecological catastrophe if they establish themselves in the U.S. wild—at least two have already set up shop in Florida—according to an October report.
• See pictures

7. Biggest Snake Discovered; Was Longer Than a Bus

The 60-million-year-old reptile was also heavier than a car, scientists said in February, adding that the fossil could shed light on climate change.
• See pictures

6. Gold Rush-Era “Ghost Ship” Wreck Found

With boots thrown hastily on deck and cooking utensils scattered, the last moments of the crew aboard the gold rush-era paddleboat A.J. Goddard are preserved in the ship’s recently found wreck, archaeologists announced in November.

5. Oldest Skeleton of Human Ancestor Found

There was never a chimp-like missing link between humans and today’s apes, according to an October fossil-skeleton study that could rewrite human evolutionary history. Said one scientist, “It changes everything.”
•

4. “Extinct” Bird Seen, Eaten

Long believed to be extinct, a rare quail from the Philippines was photographed for the first time ever—then sold at a poultry market, experts said in February.

3. New Cloud Type Discovered?

Nicknamed “Jacques Cousteau” clouds, these “turbulent” seas in the sky could be examples of the first official new cloud type since 1951, experts said in June.

2. Fish With Transparent Head Seen Alive for First Time

Perhaps the most bizarre nature discovery of the year—though Stephen Colbert put it a bit less delicately—a Pacific barreleye fish shows off its transparent head and barrel-like eyes in pictures released on February of the first specimen ever found alive.

1. “Missing Link” Found: Fossil Connects Humans, Lemurs?

The 47-million-year-old, exceptionally preserved primate fossil “Ida,” unveiled on May 20, was hailed by some as a major discovery in human evolution.

New discovery and it might alter the views on their habits and as well as their extinction.
Story:
Many dinosaurs may have been warm-blooded just like mammals or birds, potentially explaining their extraordinary success before their extinction.

For decades, scientists assumed that because dinosaurs resembled lizards, they were cold-blooded as well, their internal temperature rising and falling with the outside world. However, birds are warm-blooded, and the fact that birds seem to be descended from dinosaurs raises the question of whether their ancestors were as well.

If dinosaurs were warm-blooded, they would have possessed the potential for athletic abilities rivaling those of mammals and birds. They could have survived in colder habitats that would kill cold-blooded creatures, such as high mountain ranges and polar regions, enabling them to cover the entire landscape. Such advantages do carry a price — warm-blooded animals need much more food than their cold-blooded counterparts because their rapid metabolisms fatally malfunction if they cool down too much from lack of fuel.

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